Space Shuttle Enterprise is among the first orbiters ever built, and is on display at the Smithsonian Institution's Air and Space Museum Udvar-Hazy Center in Chantilly, Virginia. Enterprise flew a series of space shuttle approaches and landing tests between February 15, 1977 and October 26, 1977 to prove the craft could fly in the atmosphere and land without power-gliding flight. NASA initially intended for Enterprise to join the shuttle fleet; costs of retrofitting it for space flight made it impractical and Challenger was completed instead. Enterprise will remain in the Smithsonian until it is replaced by Discovery and relocated to the Intrepid Sea, Air & Space Museum in New York.

Legend airport subway/metro system skyline/city overview prov./state/natl. capital building◊ unincorporated area without city name(unincorporated locations use the city name on the mailing address when available)(airports and subways are listed in both their own city and the metro area they serve)(NHL teams are listed in the arena's city only)